BIKERELIABILITY Reg check
League table/ BMW R60/6/vs Kawasaki ZX-6R
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

BMW R60/6 vs Kawasaki ZX-6R

The BMW R60/6 passes its MOT first time more often than the Kawasaki ZX-6R: 89.1% vs 78.1%, a 11.0-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric BMW R60/6 Kawasaki ZX-6R
First-time pass rate 89.1% 78.1%
Outright fail rate 4.8% 14.0%
Vs comparable bikes (age & mileage adjusted) +6.2 pts -5.8 pts
Engine size 599cc 599cc
Rank among all models #1243 of 5428 #3895 of 5428
Median miles at test 43,926 19,446
MOT tests analysed 764 173,956
Most common failure lighting and signalling lighting and signalling

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component BMW R60/6 Kawasaki ZX-6R
Lights & signalling 2.6% 6.1%
Brakes 0.8% 5.2%
Steering & suspension 1.2% 4.6%
Tyres & wheels 0.9% 3.6%
Structure & body 0.5% 1.2%
Fuel & exhaust 0.5% 0.8%
Drive system 0% 1.0%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year BMW R60/6 Kawasaki ZX-6R
2010 86.4% 76.3%
2011 87.0% 76.6%
2012 95.1% 75.4%
2013 94.1% 75.5%
2014 89.5% 76.4%
2015 91.4% 76.7%
2016 84.2% 77.7%
2017 86.2% 77.1%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage BMW R60/6 Kawasaki ZX-6R
0k-10k miles 91.9% 86.1%
10k-20k miles 93.4% 80.6%
20k-30k miles 95.8% 75.4%
30k-40k miles 84.2% 71.8%
40k-50k miles 90.5% 69.5%
50k-60k miles 87.9% 69.0%

Bands with fewer than 30 tests for either bike are left out.

BMW R60/6 vs Kawasaki ZX-6R FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the BMW R60/6 or the Kawasaki ZX-6R?

The BMW R60/6 passes its MOT first time more often than the Kawasaki ZX-6R: 89.1% vs 78.1%, a 11.0-point lead. Adjusted for age, mileage and test class, the BMW R60/6 still comes out ahead: +6.2 points vs comparable bikes for the BMW R60/6, -5.8 for the Kawasaki ZX-6R. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the BMW R60/6 fail its MOT on most?

Lights & signalling: 2.6% of BMW R60/6 MOT tests failed on it, then steering & suspension (1.2%).

What does the Kawasaki ZX-6R fail its MOT on most?

Lights & signalling: 6.1% of Kawasaki ZX-6R MOT tests failed on it, then brakes (5.2%).

Which holds up better at high mileage, the BMW R60/6 or the Kawasaki ZX-6R?

At 50k-60k miles the BMW R60/6 passes first time more often: 87.9% for the BMW R60/6 vs 69.0% for the Kawasaki ZX-6R.

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.